Support.



R. ANDERSON.

SUPPORT. APPLICATION FILED JAN-21,1916.

Inve Toto Patented July 11, 1916.

2 SHEETS-SHEET I n. ANDERSON.

sunom. APPLICATION FILED JAIL'ZI, 1916.

1,1 90,502. Patented July 11, 1916,

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

ROBERT ANDERSON, OF RACINE, WISCONSIN.

SUPPORT.

Application filed January 21, 1916.

Toall whom z'tmay concern:

Be it known that I. ROBERT Ammnsou, a citizen of the United States, residin at Racine, in the county of Racine and tate of 'isconsin, have invented certain new and useful Improvements in Supports, of which the following is a specification, reference being bad to the accompanying drawing, forming a part thereof.

This invention relates more particularly to fixturesor supports forelectric lamps and has for its main objects to provide a device of this kind which is of simple construction and attractive appearance and which may be easily and quickly adjusted, the adjustment being accomplished without the necessitypf manipulating screws or other fastenings. and generally to improve the construction and operation of devices relative to Fig. 1: Fig. 3 is an'enlarged section of the clamp on the line 3-3, Fig. I; Fig. 4 is an inside elevation of one of the clamp members; Fig. 5 is a section on the line 55. Fig. 4; Fig. 6 is an inside elevation of a clamp jaw or member of a modified construction: andFig. 7 is a'central section through a clamp composed of two similar jaws or members of such modified construction.

In the several figures like or similar parts are identified by the same reference charact'ers.

Referring to the drawipgs, 1 designates a main supporting arm which may be secured to a base '2. to form a portable stand as shown in Fig. 1, or may be secured to a bench or machine or attached to a wall or ceiling in any suitable manner. Upon the main arm 1 is slidably and rcvolubly mounted a clamp ('mnposed of two jaws 3 and 4. An adjustablc lamp supporting arm having a lamp socket 6 at one end, is slidably and revolubly supported by the same clamp. The main arm 1 and the lamp arm 5 are pref- Speciflcation of Letters Patent.

Patented July 11, 1916.

Serial No. 73,295.

erably circular in cross section or cylindrical and may be formed of tubing and are frictionally held between the jaws 3 and 4.

The clalnp is preferably formed of two 60 like or similar jaws or members. 3 and 4, which may be made of cast metal and are provided with central bolt holes 8 and outwardly opening sockets 9. The inner side of each jaw or member is provided with a curved friction bearing rim or face 10 concentric with the bolt hole and is formed with a recess or seat 11. at a distance from and transverse to the bolt hole 8, to receive the arm 1 or 5. said arms being of somewhat greater diameter than the depth of the seat so that they will project slightly beyond the plane of the bcarin face of the jaw or clamp member as is cl early shown by Fig. 5.

The two jaws or members 3 and 4 are piv- 7 5 otally connected by a bolt 12 which passes through the holes 8 and sockets 9. A spring 13 interposed between the head 14 and the inner end of the socket 9 of one member and a spring 15 between the nut 16 and the innet end of the socket of the other member, provides a yielding connection between the members 3 and 4 and holds them in frictional engagement with the arms 1 and 5.

The construction and connection of the clamping members or jaws 3 and4. as herein shown and described, permits'the clamp to be shifted and adjusted bodily upon and lengthwise of the main arm 1 and to be turned about the axis of saidarm. and also allowsthe lamp arm 5 to be shifted and adjusted lengthwise and turned on its axis in the jaw member 4 and turned with said jaw member aboutthe bolt 12 into any desired angular relation to or parallel with the main arm 1. All these adjustments are readily made without manipulating screws or other fastenings. the lamp being held, in any position to which it.is adjusted, by the yielding frictional engagement of the. jaws -or clamp members 3 and 4 with the arms 1 1 or the lamp arm The operation of this modified form of clamp is identical with that of the other form, the frictional engagement of the parts in the modified form being provided by the spring of the sheet metal forming the jaws or clamp members.

Various modifications, other than that shown and specifically mentioned, may be made in minor detailsof construction and arrangement of parts without departure from the principle and scope of the invention as defined 1n the following claims.

I claim;

1. In a support the combination with two arms, of a clamp composed of two similar and pivotally connected jaws having oppos ing friction faces each formed at a distance from and transversely to the pivot axis of the jaws with a recessed seat for one of the arms whichis held herein in slidable engagement with the opposing friction face of the other jaw, each jaw with the arm carried thereby being angularly adjustable relative to the other jaw and arm,

2. In a support thecombination with two arms, of a clamp composed of two similar pivotally connected jaws having opposing friction faces yield-able away from each other and each formed at a distance from and transversely to the pivot axis of the jaws with a recessed seat for one of the arms, which .is held therein in slidable engagernent with the opposing friction face of the other jaw, each jaw and the arm can ried thereby being angularly adjustable relative to the other jaw and arin.

3. In a support the combination with two arms, of a clamp composed of two similar pivotally connected jaws having opposing friction rims concentric with the pivot axis of the jaws, yieldable away from each other, and each formed at a distance from and transversely to the pivot axis of the jaws i with a recessed seat for one arm, which is held therein in slidable engagement with the opposing friction rim of the other jaw, each jaw with the arm carried thereby being angularly adjustable relative to the other jaw and arm.

4. In a support the combination of a main supporting arm, an adjustable arm and a clamp composed of two similar members pivotally connected together by a bolt and having opposing bearing facesand recessed seats at a distance from and transverse to the. pivot bolt, said seats being adapted to receive said arms each of which projects from its seat in one clamp member beyond the bearing face of that member, and a spring interposed between a bearing on'the pivot bolt and the adjacent clamp 'memberandf adapted to hold each arm in frictional en gagernent with its seat in one member and with the bearing face of the other member.

In a support the combination of a main supporting arm, an adjustable arm and a.

clamp composed of two similar members having axiall alined bolt holes and spring sockets, a boit passingfthrough said holes and sockets and pivotally' connecting said members, and s rings interposed bet-ween hearings on the bolt and the inner ends of said sockets and'adapted, to hold the clamp members in yielding engagement with said arms, the clamp members being provided with opposing curved bearing faces and at a distance from and transverseto the pivot bolt with recessed seats to receiveisaid a'rrris' each of which projects from its seat in one clamp member slightly beyond the hearing face of that member. v

Tn witnesswhereof 1 hereto atfixiny signature in presence'of two witnesses.

ROBERT ANDERSON.

Witnesses: I

G. H. McCULLooo'n.

. M. Jeeves-V c 1 or the lamp arm The operation of this modified form of clamp is identical with that of the other form, the frictional en gagement of the parts in the modified form being provided by the spring of the sheet metal forming the jaws or clamp members.

Various modifications, other than that shown and specifically mentioned, may be made in minor details of construction and arrangement of parts without departure from the principle and scope of the invention as defined in the following claims.

I claim: 7

1. In a support the combination with two arms, of a clamp Composed of two similar and pivotally connected jaws having opposing friction faces each formed at a distance from and transversely to the pivot axis of the jaws with a recessed seat for one of the. arms which is held herein in slida'ble en' gagement with the opposing friction face of the other jaw, each jaw with the arm carried thereby being angularly adjustable relative to the other jaw and arm.

In a support the combination with two arms, of a clamp composed of two similar pivotally connected jaws having opposing friction faces yieldable away from each other and each formed at a distance from and transversely to the pivot axis of the jaws with a recessed seat for one of the arms, which is held therein 111 shdable engagen'ient with the opposing friction face of the other jaw, each jaw and the arm carried thereby being angularly adjustable relative to the other jaw and arm.

3. In a support the combination with two arms, "of a'. clamp composed of two similar pivotally connected jaws having opposing friction rims concentric with the pivotaxis of the jaws, yieldable away from each other, and each formed at a distance from and transversely to the pivot axis of the jaws with a recessed seat for one arm, which is held therein in slid-able engagement with the the' pivot bolt, said seats being adapted to receive said arms each of which projects from its seat in one clamp member beyond the bearing face of that member, and a spring lnterposed between a bearing on the pivot bolt and the adjacent clamp member. and

adapted to hold each arm in frictional en gagement with its seat in one member and with the bearing face of the other member.

In a support the combination of a main supporting arm, an adjustable arm and a clamp composed of two similar members having axially alined bolt holes and spring sockets, a bolt passing through said holes and sockets and pivotally connecting said members, and springs interposed between bearings on the bolt and the inner ends of said sockets and adapted to hold the clamp members in yielding engagement with said arms, the clamp members being provided with opposing curved bearing faces and at a distance from and transverse to the pivot bolt with recessed seats to receive said arms each of which projects from its seat in one clamp member slightly beyond the bearing face of that member.

In witness whereof I hereto afiixniy sig nature in presence of two witnesses.

ROBERT ANDERSON.

Witnesses G. H. McCULLoUon. E. M. Jonxson.

Copies of this patent may be obtained for five cents each, by addressing the "Gommissioner of Patents,

in Supports,

n Letters Patent No. 1,190,502

[SEAL] 3 c1. 24s-s. u

Signed end sealed this 1st day of August, A. 1)., 1916.

Washington, D. C."

It is hereb certified that in Letters Patent No. 1,190,502, granted July 11, 1916,

upon the application of Robert Anderson, of Racine, Wisconsin, for an improvement an error appears in the printed specification requiring correction as follows: Page 2, line 20, claim 1, for the Word herein read therein; and that the said Letters Patent should be read with this correction therein that the same finay conform to the record of the case in the Patent Ofiice.

F. W. H. CLAY,

Acting Gommissiomr of Patents.

Correction in Letters Patent No. 1,190,502

Washington D. C. It i3 herei certified that in Letters Patent No. 1,190,502, granted July 11, 1916,

upon the application of Robert Anderson, of Racine, Wisconsin, for an improvement in Supports, an error appears in the printed specification requiring correction 1 as follows: Page 2, line 20, claim 1, for the word herein reed therein; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 1st day of August, A. D., 1916.

F. W. H. CLAY,

[SEAL] Acting Commissioner of Patents 

